/*
 *  Copyright 2020 Xiaomi
 *
 *    Licensed under the Apache License, Version 2.0 (the "License");
 *    you may not use this file except in compliance with the License.
 *    You may obtain a copy of the License at
 *
 *        http://www.apache.org/licenses/LICENSE-2.0
 *
 *    Unless required by applicable law or agreed to in writing, software
 *    distributed under the License is distributed on an "AS IS" BASIS,
 *    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *    See the License for the specific language governing permissions and
 *    limitations under the License.
 */

package com.xiaomi.data.push.common;

import org.apache.commons.lang3.StringUtils;

/**
 * @author goodjava@qq.com
 */
public abstract class TraceId {

    public static String getTraceId(Object[] objs) {
        if (null != objs && objs.length == 1 && objs[0] != null && objs[0].getClass().equals(RequestContext.class)) {
            String traceId = ((RequestContext) objs[0]).getTraceId();
            if (StringUtils.isEmpty(traceId)) {
                return "";
            }
            return traceId;
        }
        return "";
    }

}
